General
Lawn Tennis Association (LTA) - The Governing body of British Tennis
Warwickshire LTA - Warwickshire's Online Tennis Community
International Tennis Federation (ITF) - The World Governing Body of Tennis (includes Rules of tennis)
ETA Tennis - What you need to know about tennis
Blue Print for British Tennis - The vision, direction and proposed outline for the future of the sport in this country
Ace Tennis Directory - the first port of call for enthusiasts seeking any tennis related goods or services

Competitions
Wimbeldon
French Open
Davis Cup
Women's WTA Tour
Men's ATP Tour

Juniors
Mini Tennis
Junior Tennis
Junior Davis Cup